US2638651A

US2638651A - Low permeability separable fastener

Info

Publication number: US2638651A
Application number: US615261A
Authority: US
Inventors: Louis H Morin
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-09-10
Filing date: 1945-09-10
Publication date: 1953-05-19
Anticipated expiration: 1970-05-19

Description

May 19, 1953 L. H. MORIN LOW PERMEABILITY SEPARABLE FASTENER Filed Sept. 10, 1945 ENT Mam/v ATTOR Y Patented May 19, 1953 UNITED STATES PATENT OFF ICE LOW PERMEABILIV'IY SEP RAB EJFASTENER x Loni 51H. Morin, Bronx, N1 Application September 10, 1945, Serial No. 615,261

This invention relates v to separable fasteners, particularly of the type employingwhatlterrn coreless scoops arranged along the stringers of the fastener. More particularly, the invention deals'with scoops having offset coupling side portions forming flat shoulders centrally and longitudinally of the scoops withthe shoulders of one scoop overlapping those a of adjacent scoops in establishing a tight or substantially sealed coupling between the scoops. .A lso,.and as illustrated in the drawings of the forms of the invention,;.hereinafter; described, the scoops are preferably;constructed; and arranged so as to form asubstantially tightseal with the .edge portions of the respective tapes or mounting members to which the scoops are secured.

' The novel; features of the invention will be best understood from the following, description, when taken together with the accompanying drawing,- in which certain embodiments of. the invention are disclosed and in which theseparate parts are designatediby suitable reference characters in each of ,the views In such drawings:

a Fig. 1 is a partially sectioned elevational view of a few coupled scoops on; adjacent edges of two stringers shown on. ascale muchenlarged over life-size; I I

Fig. 2 is a partial sectionon the line..'2-2 .of Fig. 1 simply showing the .scoop structure at the section line indicated and omitting allbackground illustrations; e I

Fig. 3 is a perspective view of one of the scoops as arranged on the beaded edge of astringer; Fig. 4'is. a view similar toFig. 3 showing a modification;

ing.;only a single. scoop .as constructed in Fig.

4; and a Fig. 6 is a view [similar to Fig.2 showing only three scoops and showing a modification.

The present application constitutes a continu-' least one surface of the scoop to receive a projec tion on the opposed surface of an adjacent scoop to couple the scoops together against'transverse separation. The use" of cores of this type and kind, in some'instance's, isobjectionable and this is particularly true :in attempting tprfo'rm a large,

consideration and, 'particu- 15 Claims. (01. 24-20513) .wardly of the projections I4, J4 are V-shaped recesses .l5, l5. disposed on upper and lower sur- .,V I Y,.35 Fig. 5 is a sectional. view similar to Fig.2 shownumber of castings simultaneously upon the beaded edge of a stringer tape. By dispensing with the use. of cores, it is possible to materially increase the, ,nuinberof individual sco ps formed in ;.one l casting 1 operation v and to v provide the coupling jengagement. preventing transverse separation by: simply offsetting the side portions of. each scoopfbody to "form prol'l cting flanges or walls on theeenter line of thefscoopsf; estab:

lishing between adjacentpoupled scoops an'interlock which retains the scoops against transverse separation. .fI'hisresult nay'be earried out in; scoops of the more. or less conventional transversely stra'ightconstruetion or with scoops of...what might be termed. vshaped cross sec tional form, as illustrated in Figs. 4 and 5 of the drawing fl, A

.Considering .Figs. "1-3 inclusive} have shown atllll, I0" two small portions of stringers, having" beaded .edgesll, ll, .to which are attached scoops i2, 12', As both stringers and the scoops thereonare 0t theisame construction, the illustration of. one scoop, for M illustrative purposes .ine perspectiveJin Fig. 3, is allthat is essential. InIthi s figure, the tape gillpwith .theiscoop i2 is shownfarranged upon the beaded edge ll.

.Eachfscoopj is of. what I term'the diamond head construction. [In other words, the outer ends of all thescoopsihavemore or less diamondshaped-coupling headsf l3, I, 3' defined by upper and {lower V-sh'aped projections l4 l4' Infaces of the scoops whieh are adaptedto receive the hea'ds l 3',"l3 of the scoops of an opposed stringer orthe projections 14f thereon,

as "will clearly appear from a consideration, of J1 of the drawing... While not essential to the enjoyment of .thelother advantages of the construction, it is preferred'thatftheheads l3,

"13" are soforrnedjas to extend to a point, establishingja ifirm, abutting, engagement with; the beaded edges of opposed 'st'ringer's the ends is of -theheads l3 abutting the head I I and the ends 16' of heads [3' abutting the bead H. This closes the-scoop gap between the beads H, H transverselywith respect to the stringers.

The head and recess; construction of the scoops forms the. coupling between the sccopswhich prevents lateral or. pull-apart separation of the stringers; ,Transverse separation, on the other hand. is-preventedin the manner to be described.

Considering Fig; 3.0: the drawing. it I will ,be seen that the scoop is-formed as, if composed of halves or side ;portions ;verti eally off-set with respect to each other. For convenience the side portion ll of the scoop l2 may be termed the lower side portion and the side portion l8 may be termed the higher side portion. This offset relationship of the side portions l1 and i8 forms centrally and longitudinally of the scoop a raised coupling wall or shoulder I9 at the upper surface of the scoop and a downwardly extending coupling wall or shoulder 20, atthe lowersurface of the scoop. Such coupling walls or shoulders may also be defined as coupling flanges. In Fig. 2 of the drawing, which shows two of the scoops 52, as well as two of the. scoops l2 in cross-section, reference numerals H, [8, H! and 26' have been applied to indicate'atheelements of scoops l2 corresponding to the elements I! to 2d of scoops I2.

The coupling walls or shoulders I9, IT-and 20, 29 extend the full length of the scoops, that is, throughout. the mountingend portions as well as the coupling end portions, as indicated in Fig. l of the drawing.

Now turning to the illustration in Fig.2, which shows a section through a few coupled scoops walls Is, it", 20, 20 0f adjacent coupled scoops which retain the scoops against transverse separation and, further, establishes a substantial seal between adjacent scoops throughout the full length ofthe coupling ends, thereof and from the beaded edge of one stringer to the beaded able in many installations or uses of stringers wherein it is desirable to maintain a substantially complete closure. It will also appear'that, by reason of the outwardly tapered construction in the walls of the projections and recesses, relat-ively large spaces 2|, 2| (Fig. 2) are provided at opposite sides ofthe coupled stringers which provide for free bending or flexing of the stringers without interference with the substantial closure achieved by the abutting contact between the walls or shoulders l9, I9,.2.0,2l1.

The modified structure shown in Fig. i is generally similar tov the structure of Figs. 1-3 inclusive, but difiers from it in that, instead of having each side portion of the scoop 'extendingperpendicularly to. side surfaces. of the stringer tapes,

the

side portions

22, 23 of the modified scoop shown in Fig. 4 are arranged at angles to each other as appears more clearly in the cross-sectional view in Fig, 5.0f the drawing. In other words, this angular relationship will give a more or less V-shaped cross-sectional form to the scoop and this cross-sectional form, in itself, is sufficient toretain the coupled scoops against transverse separation. However, the Same type of substantial seal. and inter-lock, as above described is provided by offsetting the

side portions

22, 23 one with respect to the other centrally and longitudinally of the stringer tape 24 to form a raised coupling wall or shoulder 25, similar to the walls or shoulders I9, l9,'-and a downwardly extending coupling wall or shoulder '26, similar to the

wallor shoulders

20, 20; Each

side portion

22 and 23 of the scoop will'liave diamondshaped heads, 21 similar totheheads 13, I3" and opposed recesses 28 inwardly of said head and similar to therecesses l5, l5. Itwill be understood that scoops of the form of Figs. & and 5 are adapted to mesh and interlock with identically formed scoops of a companion stringer. As before, the heads of these scoops may be of such length as to abut the tape edges of the respective stringers.

By reason of the offsetting of the scoop sides or halves centrally and longitudinally of the tape, the scoops can be formedasdiecastings on the tape, each side or half being formed by a die part with the dies having a parting line centrally and longitudinally of the scoops, thus dispensing with the use of cores of any type or kind.

For convenience, and to distinguish from the forms already described, the scoops of the Fig. 6 modification -may b'e defined as laterally tilted with respect to the tapes. As in the Fig. 5 form the scoop halves 29, 30 extend at an angle (i. e. other than from the tapes; but, as in the Fig. *2 form, the axes of the halves are in substantial alignment. As in both the previous forms, the halves are vertically off-set to form upwardly extendingooupling walls 3'i' and downwardly 'errtending coupling walls 82, similar to the walls '25 and 26. Upper and lower surfaces of each side portion or scoop halve 29, 30 converge to outer sides thereof; thus forming clearances as at '33 and 34 which will provide for flexure'or bending ofth'e stringers. Aside from the structural differences above defined, the structure of the scoops in Fig. 6"may'be precisely the same as that-of the forms already described.

Having "fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In separable fastener stringers having scoops spaced "along one "edge thereof, said scoops havingcoupling end portions projecting beyond the edge of the tape of the stringer, each of-said scoops being divided along the entire length thereof into right hand and'lett hand longitudinal side 'portions,-one or said side portions being offset with respect to "the other side portion in .a directionextending long-ltudinally'of the tape, both'side portions of eac'h'scoop having on opposed surfaces thereof alined projections and recesses, the projections and recesses of said scoops providing means for coupling opposed stringers to retain *the stringers against lateral separation, and the offsetting of the side portions of said scoops providing coupling walls on upper and lower surfaces of'th'e scoops centrally and longitudinally of the full length thereof, said coupling walls being adapted to retain coupled scoops against transverse separation.

2. In separable fastener stringers having scoops spaced along one edge thereof, said scoops having coupling-end portions projecting beyond the edge of the tapeof the stringer, the entire coupling end portion of each scoop being divided centrally and longitudinally thereof into side portions, one of said side portions being offset with respect to the other side portion in adirection extending longitudinally of the tape, both side portions of-each scoop having on opposed surfaces thereof alined projections and recesses, the projections and recesses of said scoops providing means for coupling opposed stringers for retaining the stringers against lateral separation, the offsetting of the side portions of said scoops providing coupling walls on upper and lower surfaces of the scoops centrally and iongitudinally of the full lengthof the coupling end portions thereof, said coupling walls being adapted to; retain coupled scoops against transverse separation, andsaid side portions of a scoop being disposed angularly to each other to form a coupling end portion'of substantially V-shaped cross-sectional form.

3. A scoop for a separable fastener stringer,

against lateral separation, one of said side por- 'tions being offset with respect to the other side portion in a directionextending longitudinally of thetape, and upper and lower surfaces ofthe scoop having centrallyand longitudinally of the full length thereof coupling flanges for retaining coupled scoops of a pair of stringers against transverse separation.

4. In a pair of separable fastener stringers having scoops spaced along the edges thereof, said scoops having coupling end portions projecting beyond the edges of the tapes of the stringers, the entire coupling end portion of each scoop being divided centrally and longitudinally thereof into side portions, one of said side portions being offset with respect to the other side portion in a direction extending longitudinally of the tape, both side portions of each scoop having on opposed surfaces thereof alined projections and recesses, the projections and recesses of said scoops providing means for coupling opposed stringers for retaining the stringers against lateral separation, the offsetting of the side portions of said scoops providing coupling walls on upper and lower surfaces of the scoops centrally and longitudinally of the full length of the coupling end portions thereof, said coupling walls being adapted to retain coupled scoops against transverse separation, the outer ends of the coupling end portions of the scoops abutting the edges of the opposite tapes when the stringers are coupled together, and said abutment in combination with said coupling Walls substantially closing the space between said tape edges.

5. A scoop for separable fastener stringers having a mounting end portion and a coupling end portion, said scoop having on upper and lower sides a line of demarcation dividing the same centrally and longitudinally throughout the full length thereof into offset side portions, said side portions being offset in a direction extending longitudinally of the stringer tape, each side portion having on upper and lower surfaces alined projections, inwardly of which are alined recesses, said projections and recesses of one side portion being in transverse alinement with those of the other side portion, said offset side portions forming on upper and lower surfaces of the scoop a pair of continuous coupling walls centrally of the same throughout the full length thereof, one wall being formed by one side portion of the scoop and the other wall by the other side portion thereof.

6. A scoop according to claim 3 having a V- shaped cross section throughout its entire length.

'7. A scoop according to claim 5 in which said side portions extend angularly to each other.

8. A scoop according to claim 5 in which the upper and lower surfaces of each offset side portion converge from said demarcation line to the free edge of the side portion.

9. A scoop according to claim 5 in which each 'fromthe stringer tape;

8 offset side portion extends at an angle other than "10. A scoop for separable fastener stringers havin a mounting end portion and a coupling end portion, said scoop having onupper and lower side s--a l ine of demarcation dividing the same centrally and longitudinally throughout the full length thereof"into offset side portionsysaid side portions being'offset in a direction extending longitudinally of the stringer tape,each side portion'havingmale and female coupling portions for preventing pull-apart separation of said stringers, said offset side portions forming on upper and lower surfaces of the scoop a pair of continuous coupling walls centrally of the same and throughout the full length thereof, one wall being formed by-one side portion of the scoop and the other wall'by the'other side portion thereof.

" l1. Ascoop accordingtoclaim 10 in whicheach offset side portion extends at an angle other than 90 from the stringer tape and in which both said side portions lie in the plane passing through the transverse axis of the scoop.

12. A scoop according to claim 10 in which each offset side portion extends at an angle other than 90 from the stringer tape and in which said side portions lie in transverse axial planes which intersect.

13. In separable fasteners comprising a pair of stringer tapes having scoops spaced longitudinally of adjacent edges of said tapes, said scoops having coupling portions beyond said tape edges, said coupling portions of the scoops of a pair of stringers having interlocking means for coupling the stringers against lateral pull-apart separation, the improvement which comprises scoops having scoop ends in abutting engagement with tapes of opposed stringers, interengaging means extending longitudinally of the full length of adjacent surfaces of coupled scoops for retaining the coupled scoops against transverse separation, said interengaging means comprising a coupling flange on both the upper and lower surfaces of each scoop, each scoop having a tapered scoop section with the tapering extending from said flanges to both longitudinal side edges of the scoop, and said interengaging means in combination with said scoop ends abutting said opposed tapes serving to form a substantial closure by the coupled scoops between said tape edges.

14. In separable fasteners comprising a pair of stringer tapes having scoops spaced longitudinally of adjacent edges of said tapes, said scoops having coupling portions beyond said tape edges, said coupling portions of the scoops of a pair of stringers having interlocking means for coupling the stringers against lateral pull-apart separation, the improvement which comprises scoops having scoop ends in abutting engagement with tapes of opposed stringers, interengaging means extending longitudinally of the full length of adjacent surfaces of coupled scoops for retaining coupled scoops against transverse separation, said interengaging means comprising a coupling flange on both the upper and lower surfaces of each scoop, each scoop having a tapered cross section with the tapering extending from said flanges to both longitudinal side edges of the scoop, and said interengaging means in combination with said scoop ends abutting said opposed tapes serving to form a substantial closure by the coupled scoops between said tape edges, and the scoops of each stringer being of V-shaped cross-sectional form. I

access:

15. In separable fasteners comprising a pair of stringer tapes having scoops spaced longitudinally of adjacent edges of said tapes, said scoops having coupling portions beyond said tape edges, said coupling portions of the scoops of a pair of stringers having interlocking means for coupling the stringers against lateral pull-apart separation, the improvement which comprises scoops having scoop ends in abutting engagement with tapes of opposed stringers, interengaging means extending longitudinally of the full length of adjacent surfaces of coupled scoops for retaining coupled scoops against transverse separation, said interengaging means comprising a coupling flange on both the upper and lower surfaces of each scoop, each scoop having a tapered cross section with the tapering extending from said flanges to both longitudinal side edges of the scoop, and said interengaging means in combination with said scoop ends abutting said opposed tapes serving to form a substantial closure by the coupled scoops between said tape edges, and one longitudinal side portion of each scoop being arranged at a downward inclination with respect to the tape while the other side portion is arranged at an upward inclination.

LOUIS MORIN.

References Cited in the file of this patent UNITED STATES PATENTS